I've posted this in a couple of places and I wanted to hit Supraforums with it too but since it's down, I'm posting here for the time being .



Here's the breakdown of my main parts:
1993.5 Supra TT
CTC67H .68
RPS Big Torque manifold
RPS 3.5" DP
HKS Ti (4" catback)
264 int/exh cams
Supraformance Headwork
1mm oversized Ferrea valves
Crower Springs/Retainers
Titan fuel rail w/ 850CC injectors
twin stock pumps
HPF clutch disk/ACT PP/Fidanza FW
AEM ECU

I was running a T66BB .70, RPS header (standard) and 3" DP.

I'm going to paste a generic write up I did because I'm low on time right now .

1) the lag sucks but I'll give it time especially
since I don't have time to test some ideas to get some
RPMS of spool back. It's about 1K rpms laggier it seems in low gears than my T66BB.

2) the power output is nothing to laugh at.

3) the surge in turns does NOT exist at all anymore

Dyno sheet:
www.silvino.net/dyno/final_dyno.jpg
there are all 4th gear pulls
Dyno notes:
The pump gas pull was 18 PSI on 91 octane (REAL 91, no
race gas, no knock, no overly aggressive AFRs or
timing
. We managed to hit 557WHP but I opted for a more
conservative map which netted us with 533. Not bad
for 91 octane. Give me 93 and run things as lean and
on the edge as most people do and I'd hit some sick
numbers but that's not how I wanted it. I'll keep my
car working for as long as possible .

The race gas pull was a bit of a mixed thing. We hit
759WHP/675WTQ SAE with aggressive settings (in
picture) but I asked Sean to back it off for safety
reasons). The 744.5WHP number is what I felt
comfortable with using this fuel (Unocal 114 leaded).

I forgot to add that the high boost run was at 30 PSI
which quickly fell off at 6K rpms to 26 PSI. We're
going to try a stiffer wastegate spring because mine
is on a 7 PSI spring and we'll see how it holds. It
could be the turbo.

I expect to see 800whp with the fixed wastegate.

Silvino
'93 Black M6 Supra RPS CTC67H(.68 AR) AEM Tuned
(744WHP/662WTQ @ 30PSI-26PSI(boost drop at 6kRPMS), 114 octane, 533WHP/427HTQ at 18 PSI, 91 octane)
Best 1/4: 11.6 @ 126 2.0 60' on old setup at low boost.

http://home.comcast.net/~redc5movie2/Sil_Dyno.wmv

I don't recall which mix of runs this is but it's the car on the dyno that day.

Silvino
'93 Black M6 Supra RPS CTC67H(.68 AR) AEM Tuned
(744WHP/662WTQ @ 30PSI-26PSI(boost drop at 6kRPMS), 114 octane, 533WHP/427HTQ at 18 PSI, 91 octane)
Best 1/4: 11.6 @ 126 2.0 60' on old setup at low boost.

very nice.... why'd you ever switch from your old setup, just for power? and was it worth it?

The previous setup surged at part throttle which is something hardly anyone ever talks about because most people freeway or drag race only. This is something that irked me. When Andi B. was switching to this turbo and mentioned that benefit of it, I decided to give it a shot. The other reason was power I guess but spool and surge-free were my greater cares. This is why I was a bit pulled when the turbo/header combo gave me tons more of surge-free power power but increased lag more than I had hoped. Was it worth it? I think so but I'll be using the car in a higher RPM band that I had originally planned. The only other thing I might try is a before and after swapping the original RPS manifold with the new one to see spool/power differences.

Silvino
'93 Black M6 Supra RPS CTC67H(.68 AR) AEM Tuned
(744WHP/662WTQ @ 30PSI-26PSI(boost drop at 6kRPMS), 114 octane, 533WHP/427HTQ at 18 PSI, 91 octane)
Best 1/4: 11.6 @ 126 2.0 60' on old setup at low boost.

Nice power bro!! IMO that is some nice spool! with some killer top end for a moderate size turbo....

congrats and keep us posted!

Jay